This June, the SWEET PATHFNDR (PATHways to an Efficient Future Energy System through Flexibility aND SectoR Coupling) project kicked off. PATHFNDR is a research project that aims to develop and analyse transition pathways for renewable energy integration in Switzerland. It is sponsored by the Swiss Federal Office of Energy’s SWEET programme. As the central tool for the consortium, Nexus-e will provide the scenarios, considering technical, economic, and social constraints for the national scale and regional scale.